Shipwreck hunting is ridiculously expensive. The resources required to exhaustively explore 100 sqm of space is probably 1000x of the resources required to do it on land. There aren't any easy shortcuts: radar doesn't work underwater, sonar does but is extremely low resolution, lidar works pretty well but only if the water is very shallow and clear, underwater drones have extremely limited mobility and communication capability. A lot of funding in archeology tends to go to easier or higher probability wins, which has mostly been aerial lidar in heavy vegetation areas for the past 10-15 years.
The best shipwreck hunters rely almost entirely on probabilistic models for where they might find shipwrecks, and the most useful probabilistic models have all developed in the last 30-40 years. In fact, some of the best probabilistic models like Bayesian Search Theory actually originated as a formalization of heuristics that were already used in treasure/shipwreck hunting.
In that respect, I would argue that this find is actually the result of recent advances in probabilistic modeling (along with other advances in data engineering with respect to extremely messy historical data sources) that have just barely gotten accurate enough to start getting the funding it needs to do the harder work of actually working on the sea floor.
I can think of two nationally-significant archaeological sites in Central Europe - both were partially excavated about fifty years ago, to varying but fairly limited degrees, and then gently reburied, because there wasn't enough money to keep things going.
The site of one has a poorly-trafficked tourist centre today, the other is a clearing with nothing more than a tourist plaque. Both are likely candidates for previous capital cities, so they are obviously significant, but the money just isn't there to do anything about them. I seem to recall reading somewhere that over 90% of one of the sites remains unexcavated.
These are land sites, so relatively inexpensive compared to sea sites. If this is how willing we are to fund nationally-significant land digs, I imagine sea archaeology would be comparatively even more impossible to fund.
I think actually excavating stuff is beyond their purvue tho.
https://voyis.com/projects-endurance/
Endurance is 3000m down.
Search for the SS Central America: Mathematical Treasure Hunting, Lawrence D. Stone https://www.researchgate.net/publication/247823555_Search_fo...
1) have enough money to buy robots instead and get rid of the legal and logistic trouble
2) would want to use the dolphins for activities that grant a better return of the investment like marine engineering or war (mining/demining).
Every major of a coastal city in California, or South-Africa (with a big beach visited by thousands of swimmers a day), would pay solid money for bay-watching and shark deterrent services that really work without the need of eyesore nets. People love to swim with dolphins too so would be another tourism resource in itself.
The time of your dolphins would be just too valuable and expensive to do Archaeology.
It wasn’t long before Costa Concordia was looted for its treasures.
What treasures were there, panties of Francesco's Moldavian lover?